## TRIGONOMERTRY : BASIC CONCEPTS, FORMULAE & SOLVED EXAMPLES (PART 2)

I hope you liked my previous article on the topic. Here is the second part with remaining topics. Hope you enjoyed the last article. Odd/Even Identities 1. sin (-x) = -sin x 2. cos (-x) = cos x 3. tan (-x) = -tan x 4. csc (-x) = -csc x 5. sec (-x) = sec x 6. cot (-x) = -cot x Sum/Difference Identities sin (x + y) = sin(x) cos(y) + cos(x) sin(y) cos(x + y) = cos(x) cos(y) – sin(x) sin(y) sin(x – y) = sin(x) cos(y) – cos(x)…

Read More